An expression in the usage of a language that is peculiar to itself either in having a meaning that cannot be derived from the conjoined meanings of its elements or in its grammatically atypical use of words.
Idiom:
farm (something) out or farm out (something)
Meaning:
to have someone else do something, to send something away to have it done
Example:
We farmed out the printing to another company in order to save money.
List of common idioms, their meanings and examples of their usage in sentences
Idioms can be a powerful linguistic tool only when they are used in the right way in the right places.